zwarefermion
Zwarefermion is a term used in condensed matter physics to describe a class of intermetallic materials in which electrons behave as if they have an effective mass greatly larger than the free electron mass. This heavy mass originates from strong electronic correlations between localized f electrons, typically from rare-earth or actinide ions, and itinerant conduction electrons.
In many zwaard fermion systems, localized moments from f electrons hybridize with conduction bands, forming a
Key signatures include a large electronic specific heat coefficient gamma, often in the tens to hundreds of
Common materials that exhibit heavy-fermion behavior include compounds based on Ce, Yb, and U, such as CeCu6,
Experimental study of zwaard fermion involves measurements of specific heat, magnetic susceptibility, transport, quantum oscillations, neutron